Rotary tool.



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PATENTBD JUNE 26, 1906. E. R. WILNER L. SUSSMAN.

ROTARY TOOL. I APPLIOATIOK FILED OCT. 22, 1904.

PATENTED JUNE 26, 1906. E. R. WILNBR 8: L. SUSSMAN.

WEB.

ROTARY TOOL APPLICATION FILED 001. 22. 1904.

2 SHEETS.SHEET 2.

UNITED STATES PATENT OFFIOE.

ELIAS R. WVILNER, OF NEW YORK, N. Y., AND LEON SUSSMAN, OF BAYONNE, NEWJERSEY.

ROTARY TOOL.

Specification of Letters Patent.

Patented June 26, 1906.

Application filed October 22, 190A. Serial No. 229,543-

To all whom it may concern:

Be it known that we, ELIAS R. WILNER, a resident of the borough ofManhattan, city, county, and State of New York, and LEON SUSSMAN, aresident of Bayonne, Hudson county, New Jersey, citizens of the UnitedStates, have invented certain new and useful Improvements in RotaryTools, of which the following is a specification.

Our invention relates to rotary tools, particularly such as are used inconnection with so-called "drill-presses, and has for its object toprovide an adjustable construction of the frame, so that heads ofvarious lengths may be applied thereto.

Other features of our invention will ap pear from the description andclaims following hereinafter.

Reference is to be had to the accompanying drawings, in Which- Figure lis a sectional elevation of a drill press embodying one form of ourinvention. Fi 2 is a sectional plan on line 2 2 of Fig. 1. Fig. 3 is asectional elevation of the lower end of the structure, drawn upon anenlarged scale. Fig. 4 is a side elevation of the parts shown in Fig. 3.Fig. 5 is a face view of one of the pinions forming part of thedriving-gear. Fig. 6 is a sectional elevation showing a somewhatdifferent manner of holding the cutter-shaft in position. Fig. '7 is aface view of the member which holds the cutter-shaft. Fig. 8 is asectional elevation of a drill-press embodying another form of ourinvention. Fig. 9 is a side elevation thereof, and Fig. 10 is asectional plan on line 10 10 of Fig. 8.

Referring to the form of construction illustrated by Figs. 1 to 7, Adesignates the customary arm of the drill-press, in which the head ismovable up and down. For this purpose there is provided a shaft C,carrying a pinion C, which meshes with the rack B on the sleeve B of thehead, the shaft being turned in the usual way by means of a crank or akey. (Not shown.) The head comprises the sleeve B and the chuck orspindle coupling D rotatable therein, said coupling having a flange D atthe bottom, a conical cavity to receive the tapering end E of thespindle E, and a transverse aperture D which is adapted to register witha similar aperture in the sleeve B and serves for the introduction of awedge or like tool used in driving the spindle E out of the coupling orsocket D. The extremity E of the spindle E is flattened or angular, andthe corresponding portion of the socket is of like shape. Nuts F F,screwed on the upper portion of the coupling D against the end face ofthe sleeve B, serve (together with the flange D) to prevent any endmovement of the coupling. The lower portion of the spindle E is receivedin a casing G. The upper end of this casing has a guide G for the lowerend of the rack B, so as to properly aline the casing with the upperportion of the machine. The rack B, located at the side of the sleeve B,gives the said sleeve an angular cross-section, and as the said rackprojects into the guide G of the casing G it serves to also prevent thecasing G from turning relatively to the sleeve B. The lower end of thecasing G has a chamber G closed at one side by a plug H, which receivesone end of a transverse shaft I, carrying at its other end acutting-tool J of suitable construction. As shown, this tool projectslaterally from the cylindrical surface of the casing G.

On the shaft I is mounted detachably a bevel-pinion K, meshing with asimilar pinion E on the spindle E, and having an elongated recess K toreceive a flat portion I of the shaft, whereby the shaft and pinion arecaused to rotate in unison normally; yet the shaft may be withdrawnlengthwise to free the pinion. Adjacent to the cutter J the shaft has aconical portion I adapted to be seated in a bearing-ring made in twoseparable sections L L, held in the casing by a pin M and a screw Nrespectively. The bearing-ring is thus securely held at the top and atthe bottom, but may be readily removed when desired. The casing G ispreferably forked where it forms the guide G, and a screw G is employedto hold the casing on the sleeve B.

In operation the cylindrical shank of the casing G is introduced intothe bore of a part which it is desired to provide with a longitudinalinternal groove. Thus the device 'can be used for cutting a key-grooveon the inner surface of a sleeve intended to be fitted on a shaft. Therotary tool J will cut the required groove, While the cylindrical shankof the casing will fit closely within the bore of the sleeve, and thushold the tool and work in proper relation. An important advantage of theconstruction above described is that it provides a relativelyinexpensive grooving-tool capable of attachment to an ordinarydrillpress.

Figs. 6 and 7 show a slightly different con struction for enabling thecutter-shaft to be easily removed. Here the shaft I is journaled at oneend directly in the casing G and at the other end in a bearing-ring Lthe outer diameter of which is at least equal to that of the bevelpinionK. At its central portion the shaft 1 has a peripheral groove I", whichis engaged by the recessed and flattened end portion N of a plug N,secured in the bottom of the casing G by a pin 0. This construction,like the one first described, possesses the advantage of allowingcutters of various characters to be readily substituted for one another.

In the form of construction illustrated by Figs. 8, 9, and 10 the casingwhich is connected with the sleeve 1) of the head having the rack b isconstructed in two superposed. sec

tions 9 g, the distance between which may be varied. This is done forthe purpose of enabling the same attachment to be used either with shortheads, such as the one shown in Fig. 1, or with long heads, such asshown in Figs. 8 and 9. The upper section 9 is constructed very muchlike the upper end of the casing G in Fig. 1 and has a guide 9 for therack part b of the sleeve 7) and a fork g, the members of which areconnected. by the screw g which holds the attachment upon the head ofthe drill-press. Vertical bolts 10 are screwed into or otherwisefastened to the lower section 9, and the screw-threaded upper portions17 of these bolts extend loosely through openings in the upper sectiong, which. is held at the desired distance from the lower section bymeans of nuts 19 19 Any other approved arrangement may be employed foradjustably connecting the two sec tions 9 g. The lower section 9 may beconstructed in substantially the same manner as the lower portion of thecasing G in Figs. 1, 3, or 6; but in Figs. 8 and 9 we have illustrated asomewhat different construction. Here the shaft 11, which is connectedwith the coupling (1 in substantially the same manner as described withreference to Fig. 1, carries at its lower end a bevel-pinion 1c, meshingwith apinion 9 which is j ournaled on a stud r, and the pinion g isagain in mesh with a pinion s, which is mounted loosely upon a spindlet, the upper end of which extends loosely into a suitable recess of thebevel-pinion 7c and of the shaft The lower end of the spindle t isconnected with a chuck it of any suitable con- F struction. The spindlet is movable lengthwise and is provided with a clutch device whichconnects said spindle for rotation either with the pinion k or with thepinion s. For instance, the spindle may be provided with a pin 25,adapted to engage a set of pins k or 3, according as the spindle ismoved up or down. It will be understood that by this mechanism we areenabled to cause the chuck u to rotate in either one directionor theother, while the shaft I and train of beveled wheels 7c g 8 always turnin the same direction.

I/Vhat we claim as new, and desire to secure by Letters Patent, is

1. Ina drill-press, an adjustable head comprising a sleeve having a rackand a spindlecoupling rotatable in said sleeve, acasing having means forconnecting it to said head and provided with a guide arranged to engagesaid rack to prevent the casing from turning relatively to the head, andan operating-shaft coaxial with the casing and operatively connectedwith the spindle-coupling of the head.

2. In a drill-press, an adjustable head comprising a sleeve having arack and a spindlecoupling rotatable in said sleeve, a casing comprisinganupper section adapted for attachment to the head, a lower sectionadjustable relatively to the upper section lengthwise of the head, saidupper section having a guide arranged to engage said rack to prevent thecasing from turning relatively to the head, and a tool-operating shaftournaled in said lower section and adapted for driving connection withthe spindle-coupling of the head. i

3. In a drill-press, an adjustable head com prising a sleeve having arack and a spindle coupling rotatable in said sleeve, a casing havingmeans for connecting it to said head and provided with a guide arrangedto engage said rack to prevent the casing from turning relatively to thehead, and an operating-shaft operatively connected with thespindlecoupling of the head.

4. In a drill-press, an adjustable head com.- prising a sleeve having arack and a spindlecoupling rotatable in said sleeve, a casing comprisingan upper section adapted for attachment to the head and a lower sectionadjustable relatively to the upper section lengthwise of the head, saidupper section having a guide arranged to engage said rack to prevent thecasing from turning relatively to the head.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

ELIAS R. VVILNER. LEON SUSSMAN. Witnesses:

JOHN KEHLENBEOK, JOHN LoTKA. p

